NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

13 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 228
ONVOY, LLC - MS 9
OPENTACT INC. 1
INTRADO COMMUNICATIONS, LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 1
AHOI LLC 1
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2023-08-09 228-336-6XXX 6000–6999Assigned ONVOY, LLC - MS 719E MOSS POINT MS
2023-08-09 228-344-1XXX 1000–1999Assigned ONVOY, LLC - MS 719E BAYSTLOUIS MS
2023-08-09 228-344-6XXX 6000–6999Assigned ONVOY, LLC - MS 719E BAYSTLOUIS MS
2023-08-09 228-351-0XXX 0000–0999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2023-08-09 228-351-1XXX 1000–1999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2023-08-09 228-364-5XXX 5000–5999Assigned ONVOY, LLC - MS 719E PASSCHRSTN MS
2023-08-09 228-574-0XXX 0000–0999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2023-08-09 228-687-0XXX 0000–0999Assigned ONVOY, LLC - MS 719E GULFPORT MS
2023-08-09 228-820-1XXX 1000–1999Assigned ONVOY, LLC - MS 719E HURLEY MS
2023-08-09 228-853-5XXX 5000–5999Assigned ONVOY, LLC - MS 719E VANCLEAVE MS
2023-08-09 228-933-0XXX 0000–0999Assigned ONVOY, LLC - MS 719E PASCAGOULA MS
2023-08-09 228-933-1XXX 1000–1999Assigned ONVOY, LLC - MS 719E PASCAGOULA MS
2023-07-27 228-227-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2023-07-27 228-227-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2023-07-27 228-250-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2023-07-27 228-250-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2023-07-27 228-250-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2023-07-27 228-250-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2023-07-27 228-253-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2023-07-27 228-253-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2023-07-27 228-253-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2023-07-27 228-253-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2023-07-27 228-253-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2023-07-27 228-253-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2023-07-27 228-262-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2023-07-27 228-262-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2023-07-27 228-262-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BILOXI MS
2023-07-11 228-215-4XXX 4000–4999Assigned TERRA NOVA TELECOM INC. 145J OCEAN SPG MS
2023-07-11 228-225-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H PASSCHRSTN MS
2023-07-11 228-225-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H PASSCHRSTN MS
2023-07-11 228-227-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H BILOXI MS
2023-07-11 228-227-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H BILOXI MS
2023-07-11 228-227-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BILOXI MS
2023-07-11 228-227-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BILOXI MS
2023-07-11 228-227-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H BILOXI MS
2023-07-11 228-240-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H GULFPORT MS
2023-07-11 228-250-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BILOXI MS
2023-07-11 228-250-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H BILOXI MS
2023-07-11 228-253-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H BILOXI MS
2023-07-11 228-253-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BILOXI MS
2023-07-11 228-253-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H BILOXI MS
2023-07-11 228-277-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H GULFPORT MS
2023-07-11 228-278-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H OCEAN SPG MS
2023-07-11 228-278-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H OCEAN SPG MS
2023-07-11 228-305-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H PEARLINGTN MS
2023-07-11 228-305-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H PEARLINGTN MS
2023-07-11 228-336-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H MOSS POINT MS
2023-07-11 228-336-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MOSS POINT MS
2023-07-11 228-533-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J PEARLINGTN MS
2023-07-11 228-549-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H PASCAGOULA MS

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.